Improvement in breech-loading ordnance



E. B. BUTTERFIELD. Breech-loading- Ordnance.

Patent ed Nov. 5, I86].

also a screw is cut corresponding with and piece, in which is cut aninternal screw corin the middle of the'socket of the breech- UNITEDSTATES PATENT OFFICE.

ELON B. BUTTERFIELD, or NEW YORK, N. Y.

IMPROVEMENT. m BREECH-LOADING 'ORDNANCE.

Specification forming part of Letters Patent No. 33,635, dated November5, 1861.

To all whom it may concern.- bottom of the socket of the breech-piece.The

Be it known that I, ELON B. BUTTERFIELD, washer should be of such athickness that of the city andcounty of New York, and when thebreech-pin is screwed back so that State of New York, have inventedcertain new its front face will clear the breech the back and usefulImprovements in Breech-Loading shoulder will take against the Washer, th

the letters of reference thereon. rise the instant the breech pin iswithdrawn Figure 1 of the drawings represents a cut sufliclcntly to beclear of the breech, the section of the breech of a I cannon providedscrew in the socket of the breech-piece being with my improvements; Fig.2,amodification a continuation of the screw in the breech. of the same;Fig. 3, a rearview with the The breech-pin is presented inapropermanbreech-piece in place; Fig. 4, a rearview,with ner to enterthe screw in the breech whenbreech-piece thrown up topermit the entranceever the breech-piece is brought down to its of the charge. proper placefor that .purpose' My invention consists in combining with Should itbecome necessary to abandon the the breech of a breech-loading cannon apiece on the field, the breech piece and pin movable breech-pin and amovable breech- :may be removed by unscrewing the gin 9; piece, thebreechpin being arranged and conor, if preferred, the pin 9 may be madewith structed so as to screw into the end of the bore, a slot andsplitkey in place of the screwand the breech-piecehavingasocket, in whichhead.- The operation of parts is as follows, viz: The charge isintroduced while the breechpiece is in position, as shown in Fig. 3, andthe breech-pin run in 'by turning the handbore or chamber.

Letter f represents the movable breechpiece or cap; a pin screwed intothe breech, on which the breech-piece turns; 72, a stop against whichthe breech-piece rests when turned aside for the purpose of charging thepiece; 2', a lug projecting from the breechpiece, which takes againstthe upper .horizontal surface of the bent lug or keeperj.

Letter 70 represents a socket in the breechor n, the front face of thebreech-pin jamming or ramming the charge home. To reloadthe piece thebreech-pin is run back, by

the momentum of the Wheel and the force applied, as before described. IWhat I claim as my invention and improvement in breech-loading cannonis- Combining with the breech of abrecchresponding with and forming acontinuation of the screw in the breech at the end of the bore orchamber, when the breech-piece is in its proper place, for the purposeof introducing the breech-pin.

Letter Z represents the movable breech-pin, movable breech-piece, thebreechpin being arranged and constructed so as to screw into the breechat the end of the bore or chamber, and the breech-piece having a socketin which is a screw corresponding with and forming a continuation of thescrew inthe bore or chamber, substantially as and for the purposesdebreech. The breech-pin is 'also provided with a shank, which extends.back through a hole scribed. I v

New York, September 11, 1861. I

' ELON B. BUTTERFIELD.

piece, and has a hand-wheel attached to it. Letter m, Fig. 1, and n,Fig. 2, represent I square and conical shoulders or surfaces, againstwhich the breech-pin takes by simi-. lar surfaces when screwed home.

Letter 0 represents a washer lying in the 1 Witnesses: R. J. CUNNINGHAM,W. WRAY.

